Hot-coke conveyer.



PATENTEDMA'Y 19. 1903.

Mg. GRAHAM. HOT 001x15 GO-NVEYER.

APPLICATION FILED 1'23. 2, 1903.

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Patented May 19, 1903.

PATENT ()FFICE.

'MAURIUE GR AHA M, OF LEEDS, ENGLAND.

HOT-COKE CONVEY'IF-IR.

SPEGIFIGATION'fOrming m of- Letters rat aalvacaaceo, dated May 19, 1905;.

Application filed February 2, 1903. Serial No. 144,575. (No model.) l

To all whom it may concern:

Be it known that I, MAURICE GRAHAM, en-

gineer, a subject of the King of Great Britain and Ireland, residing at Leeds, in the county of York, England, have invented a new and useful Improvement in Hot-Coke Oonveyers, of which the following is a specification.

This invention relates to hot-coke convey: ers for use mainly in conveying hot coke direct from the retorts in gas-works. In cokeconveyors of this type it has hitherto been customary for the drag or push-plate chain to work upon the bottom of the trough. Moreover, in the event of a steel-plate or steel-i belt conveyor being adoptedthis also has quenched directly after having fallen into the trough in the first instance. It will be seen, therefore, that these systemsof quenching have the drawback that any excess of water is carried along in front of the coke, and consequently is eventually absorbed or taken up by the coke during its passage along the trough, the coke being delivered in a completely-saturated condition. In the second case-via, with the steel plate or belt conveyer-there has always been water between the bottom of the trough and the steel-plate conveyer, so as to keep the latter from getting toohot, andvtherefore from warping or getting out of shape; This also has resulted in the coke becoming too wet and being delivered in a saturated condition, as in the former instance.

The object of my present invention is to overcome the drawback or objection above referred to and to provide an arrangement whereby the coke after being quenched at the point of its entry into the conveyor-troughthe pnrposeof quenching the the conveyer-tro ugh an endless traveling conveyer constructed in the form of a perforated grid and by raising the said conveyor or traveling grid to a suitable height above the level conduit for the waste water and small breeze or refuse. Suitable outlets are provided either 'in the side or bottom of the trough for the purpose of getting rid of the waste water and refuse as quickly as possible. These outlets,

or any convenient series of them, can be conor refuse'can be extracted by means ofa slowrunning elevator or other apparatus, the water being run off and pumped over again for coke, as previously described. My said invention is illustrated in the accompanying drawings, in Which- Figure 1 is a transverse section of one form of my improved apparatus.- Fig. 2 isa transverse section of a somewhat modified form. Fig. 3 is a side elevation showing a short lengthof the conveyor or traveling grid, as illustrated in Fig. 2. Fig. 4 is a plan of Fig. 3. Figs. 5'and 6 are plans (partial) of modified forms of conveyeror travelinggrid. Fig. '7is a plan showing a short length ofa further modified form-of travelingconveyer or grid.

Similar letters of reference are employed to s indicate similar parts throughout the several views. I

a is the conveyor-trough, which may be of any convenient section, either built up or castsolid, and which may be either covered or uncovered. v

b is the perforated grid forming the conveyer, which is hinged or jointed at regular intervals and is mounted on runners or wheels 0 at the joints, or which may be supported at intervals on fixed rollers, or be arranged to slide or travel in any convenient manner upon continuous bearings. Thus, for instance, the runners or wheels 0 may travel upon an internal rail d, Fig. l, or an external rail e, Fig. 2, the conveyor or grid I) being, however, in all cases arranged at a sufficient height above the floor of the trougha. The

' of thebottom of the trough. After the quenching operation, therefore, the waste water drains through the perforated grid into the lower portion of the trough, which serves as a ICO conveyer or grid 1) carries one or more scrapers f for the purpose of keeping the lower part of the trough a clear of refuse, which is discharged along With the waste water by means of outlets g, provided at convenient intervals in the bottom or side of the trough. The action of these scrapersf may be facilitated, if required, by an occasional flushing or a constant stream of water through the lower part of the trough. Each length of the perforated grid or conveyer b may be cast entire, as

shown in Fig. 4, or in sections, Fig. 5, or the grid or conveyer b may be built up of a suitable number of single bars, as shown in Fig. 6, or the conveyer may consist, Fig. 7, of a series of perforated plates 1)", or of lengths b of Wire-mesh chainwork or expanded metal, these being attached, preferably, to the double chain it it, working on rollers or runners c. The hinge-pin 772 may be formed with a central oil-passage, Figs. 2, 3, and 4, by which oil or lubricant may be conducted to the bearingsurfaces from lubricators n, of any ordinary or suitable type, provided at one or both ends of the pin on.

s, Fig. 2, is an exhanster for removing the steam and fumes prod need within the trough.

In existing coke-conveyers of the types hereinbefore referred to, in which the cohveyer works along the bottom of the trough, the drawback or objection referred to may be to some extent overcome by inserting at intervals in the bottom of the trough a series of fixed grids or gratings which are arranged in connection with a sump or collecting-tank, as hereinbefore described with reference to the outlets g.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a hot-coke conveyer, in combination,

a trough a, a perforated traveling grid or conveyer Z) working therein, means for sup- .porting the said grid or conveyer above the level of the bottom of the trough, an outlet or series of outlets g, and a scraper or scrapers f, whereby the coke after being quenched is drained of its superfluous moisture during its transit along the trough, substantially as set forth.

2. The combination, withaconveyer-trough provided with a drain-outlet, of a conveyer formed of pivoted plates provided with wator-passages, and a scraper on the lower side of the said conveyer which works in the bot tom part of the said trough.

3. Thecombination,with aconveyer-trough provided with a drain-outlet, and rails inside the said trough; of a conveyor formed of pivoted plates provided with water-passages, rollers which run on the said rails and support the said plates, and a scraper in the lower side of the said conveyer which works in the bottom part of the said trough.

at. The combination,withaconveyer-trough provided with a drain-outlet, of a conveyer formed of a series of plates each said plate consisting of a series of bars arranged side by side with water-passages between them, and pivot-pins connecting the said plates together, and a scraper on the lower side of the conveyer which works in the bottom part of the said trough.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MAURICE GRAHAM.

Witnesses:

ALLAN BENNETT, JOHN E. WVALsI-I. 

